Plow-disk assembly.



A. 51200K... PLOW DISK ASSEMBLY. APPLscMlow msn m/wzmwm.

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Patented om. 26,- 1915.

ALBERT E. COOK, 0F KANKAKEE, ILLINOIS.

PLOWJDISK ASSEMBLY.

Specification of Letters Patent.

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Original application filed October 23, 1908, Serial No; 459,l39. Divided and this application led May 28,

1914.. Serial No.841,415.

To all 'whom it may concern Be it known that I, ALimirr E. Coon, a citizen of the United States, and a resident of the town of Kankakee, in the county of Kankakee and State of Illinois, have invented certain new and useful Improvements in Plow-Disk Assembly; and I do hereby declarethat the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the numerals of reference marked thereon which form a part of this specification. l

This application constitutes a division of my co-pending application for' patent for agricultural implements, Iiled October 23, 1908, Serial No. 459,139, and relates to the improved form of plow diskconstruction and assembly7 illustrated in said application.

1t is an object of this invention to provide a very durable construction wherein a number of peculiarly shaped plow disks are arranged in alined parallel relation with one another,.and connected to move as a single unit when driven from a suitable source of power.

It is also an object of this invention to construct plowing gangs for use on a mof tor plow wherein the disks are both concave and convex on each of their surfaces, whereby when the disks cut the soil they also serve to elevate the same and turn a furrow.

It is a further object of this invention to construct gangs of plows for a motor plow wherein' strong metal disks are rigidly con- -nected one to another by means of sleeve members bolted through the disks to each other.

It is finally an object of this invention to provide a very simple and durable construction in the assembly of disks for gang plows wherein the number o f disks in a gang may be readily varied at will by detaching cer- V tain ones thereof or connecting additional disks in place, as desired.

The invention (in a preferred form) is illustrated inthe drawings and hereinafter more fully described. n

In the drawings: Figure lis a fragmentary detail partly in elevation and partly in section of one end of a motor plow, showing `the driving connections to a gang of plowing disks mountedthereon. Fig. 2 is a. sec- -and to said sleeve sections.

disks are each denoted by the reference nunieral 1, and, as shown in Fig. 2, said disks are curved near their outer margins at the points 2, in one direction, and reversely curved at the points 3, near the central part or hub ofthe disk. Said disks are connected one to another by'tnbular sleeve sections t, provided with flanges 5, at their ends which lie upon the flattened portion 6, of each of said disks and are apertured to receive attaching bolts 7, therethrough, whereby said disks are connected rigidly to one another However, disposed centrally of the gangs in place of a sleeve member 4, a worm gear 8, is provided which has an extended hub 9, .which is flanged at its ends as indicated by the reference numeral 10, similar to the construction of said sleeve portions, and is connected to the adjacent disks in a manner similar to that already described. "Housing sections 11 and 12. respectively, are provided for said worm gear S, and the hub of said gear is rotatably journaled therein. For the purpose of driving said gangs of plow disks by the worm gear 8, which is rigidly attached thereto, a worm 13, is provided which meshes with said gear and is rigidly mounted upon a vertical shaft 14, provided with a bevel pinion 15, vdriven by another bevel pinionT 1G. Said bevel pinion 16, is secured upon the end of a shaft 17, which -has feathered thereon a friction wheel 18, adapted to contact at different radial distances the main driving disk 19, mounted on the driving shaft 20. However.l since the driving connections shown form no part of'this invention and are fully describedvin the parent application already referred to, the details thereof are not entered into here.

The method of connecting the disks` together obviously presents an easy method e neet-ed brtween the disks on each side tl reef, it is `ibvious that the drive is transn ated to ail of the disks as a unit when said gear 1s driven. The peculiar construction of the disks, that is to say the double curvature thereof, enables the saine to cut into the soil, readily elevating the soil so cut and turning a furrow very similar to the ordinary hand plow.

I ain aware that variousvdetails of construction Inay be varied through a Wide range Withoutv departing fromthe principles or' this invention, and I therefore do not purpose limiting the patent granted other- I y wise than necessitated by the prior art.

l the disks.-

disks to move as a unit, drivingmechanism n integral with one of said sections and means permitting detachment of one or more of In a n'lachine of the class described plowinggangs, each embracinga plurality of rotatable disks concave between the periphery and the 0centerA on one side, and the other side concave at the center to aord a. reverse bend in the disks to turn a furrow, shaft sections danged at the ends tc bearv against the centers'of. the disks, a driving gear integral n ith one of said sections and means connecting the ianges to the disks.

4. In a device 'of the class described c plurality of plow disks, each of said disks bentconcavely on one side and convexly on the other, flanged members rigidly connecting each of said disks together, and a ing members for inclosing said driving' means.

6. In a machine of the class described plowing gangs, each embracing a plurality of rotatable disks constructed of even thickness throughout, having a concave Working face which curves away in one direction from the cutting edge to form an annular depression and which curves in another direction to a point in the plane of the cuttin edge of the disk to form a central raise 'ortion having a flat surface substantially 1n the plane of thel cutting edge of the disk, shaft sections flanged at their ends for attachment on said fiat surfaces of saiddisks, and driving means integral with one of said sections for driving said connected disks.

In testimony `whereof I have hereunto subscribed my name in the presence of two subscribing Witnesses.

itnesses:

,. CHAnLEs WIIILLs, J r.,

FRANK l. HUDSON.

ALBERT 'n Coon.I 

